用51单片机，汇编语言编写。功能是按下按键可以输出不同的音乐，音乐可以自己设置，数码管上会显示当前播放的是第几首歌。该工程文件在keil环境下编译，用proteus仿真通过。-using C language, 51 microcontroller. Function is to press the buttons can output different music, music can be set by yourself. LED DISPLAY will show the song w